<template>
  <div class="home" style="padding: 10px">
    <div style="margin: 10px 0">
      <el-button type="primary" @click="add">新增</el-button>
      <el-popconfirm title="确定删除吗?" @confirm="deleteBatch">
        <template #reference>
          <el-button type="danger">批量删除</el-button>
        </template>
      </el-popconfirm>
    </div>
    <div style="margin: 10px 0">
      <el-input v-model="search" @input="onInput" style="width: 20%;" clearable placeholder="请输入关键字"/>
      <el-button type="primary" @click="load" style="margin-left: 5px">查询</el-button>
    </div>
    <el-table :data="tableData" border stripe style="width: 100%" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55"/>
      <el-table-column prop="id" label="ID" sortable/>
      <el-table-column prop="name" label="商品名"/>
      <el-table-column prop="price" label="价格"/>
      <el-table-column prop="user_id" label="采购商"/>
      <el-table-column prop="data_time" label="日期"/>
      <el-table-column prop="cover" label="封面">
      <template #default="scope">
        <div class="demo-image__preview">
          <el-image
              style="width:100px;height: 100px"
              :src="scope.row.cover"
              :preview-src-list="[scope.row.cover]"
              #placeholder="暂无封面"
              fit="cover"
          >

          </el-image>
        </div>
      </template>
      </el-table-column>

      <el-table-column label="操作">
        <template #default="scope">
          <el-button size="small" @click="handleEdit(scope.row)">编辑</el-button>

          <el-popconfirm title="确定删除吗?" @confirm="handleDelete(scope.row.id)">
            <template #reference>
              <el-button size="small" type="danger">删除</el-button>
            </template>
          </el-popconfirm>

        </template>
      </el-table-column>
    </el-table>
    <div style="margin: 10px 0">
      <el-pagination
          :currentPage="currentPage"
          :page-sizes="[5,10,20]"
          :page-size="pageSize"
          :small="small"
          :disabled="disabled"
          :background="background"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total"
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
      >
      </el-pagination>
      <el-dialog
          :title="提示"
          v-model="dialogVisible"
          title="Tips"
          width="30%"
      >

        <el-form :model="form" label-width="120px" >
          <el-form-item label="商品名">
            <el-input v-model="form.name" style="width: 80%;"></el-input>
          </el-form-item>
          <el-form-item label="价格">
            <el-input v-model="form.price" style="width: 80%;"></el-input>
          </el-form-item>
          <el-form-item label="进货商id">
            <el-input v-model="form.user_id" style="width: 80%;"></el-input>
          </el-form-item>
          <el-form-item label="进货日期">
            <el-date-picker v-model="form.date_time" type="date" value-format="YYYY-MM-dd HH:mm:ss" placeholder="选择日期时间" style="width: 80%;" clearable></el-date-picker>
          </el-form-item>
          <el-form-item label="照片">
            <el-upload
                ref="upload"
                action="http://localhost:9090/files/upload"
                :on-success="filesUploadSuccess"
            >
              <el-button type="primary">点击上传</el-button>

            </el-upload>
          </el-form-item>

        </el-form>

        <template #footer>
          <span class="dialog-footer">
            <el-button @click="dialogVisible = false">取消</el-button>
            <el-button type="primary" @click="save">确定</el-button>
          </span>
        </template>
      </el-dialog>
    </div>
  </div>
</template>

<script>

import request from "@/utils/request";

export default {
  name: 'Goods',
  components: {},
  data() {
    return {
      form: {},
      dialogVisible: false,
      serch: '',
      currentPage: 1,
      pageSize: "10",
      total: 0,
      user:{},
      tableData:[
        {
          ID: '1',
          name: '生菜',
          price: '1.9',
          quantity:5,
          user_id:0,
          condition: "状态",
          date_time: "2022-11-1",
        }
      ],
      ids:[]
    }
  },
  created() {
    //调用load()
    let goodsStr = sessionStorage.getItem("goods") || "{}"
    this.goods = JSON.parse(goodsStr)
    request.get("/goods/"+this.goods.id).then(res=>{
      if (res.id === '0')
      {
        this.goods = res.data
      }
    })
    this.load()
  },

  methods: {
    deleteBatch(){
      if (!this.ids.length)
      {
        this.$message.warning("请选择数据！")
        return
      }else {
        //向后台发送数据
        request.post("/goods/deleteBatch",this.ids).then(res=>{
          console.log(this.ids)
          console.log(res)
          if (res.code === '0'){
            this.$message.success("批量删除成功")
            this.load()//更新数据
          }else {
            this.$message.error(res.msg)
          }
        })
      }
    },
    handleSelectionChange(val){
      this.ids = val.map(v => v.id)
    },
    filesUploadSuccess(res){
      console.log(res)
      this.form.cover = res.data
    },
    onInput() {
      this.$forceUpdate();
    },
    load() {
      request.get("/goods", {
        params: {
          pageNum: this.currentPage,
          pageSize: this.pageSize,
          search: this.search
        }
      }).then(res => {
        this.loading=false
        this.tableData = res.data.records;
        this.total = res.data.total;
      })
    },
    add() {
      this.dialogVisible = true;
      this.form = {}
      if (this.$refs['upload']){
        this.$refs['upload'].clearFiles()
      }
    },

    save() {
      if (this.form.id) {
        request.put("/goods", this.form).then(res => {
          if (res.code === '0') {
            this.$message({
              type: "success",
              message: "更新成功"
            })
          } else {
            this.$message({
              type: "error",
              message: res.msg
            })
          }

          this.load()
          this.dialogVisible = false
        })
      } else {//新增
        request.post("/goods", this.form).then(res => {
          console.log(res)
          if (res.code === '0'){
            this.$message({
              type: "success",
              message:"新增成功"
            })
          }else {
            this.$message({
              type: "error",
              message:res.msg
            })
          }

          this.load()
          this.dialogVisible = false
        })
      }

    },
    handleEdit(row) {
      this.form = JSON.parse(JSON.stringify(row));
      this.dialogVisible = true
      this.$nextTick(()=>{
        if (this.$refs['upload']){
          this.$refs['upload'].clearFiles()
        }
      })
    },
    handleDelete(id) {
      request.delete("/goods/"+id).then(res => {
        if (res.code === '0'){
          this.$message({
            type: "success",
            message:"删除成功"
          })
        }else {
          this.$message({
            type: "error",
            message:res.msg
          })
        }

        this.load()
      })
    },
    handleSizeChange(pageSize) {
      this.pageSize = pageSize
      this.load();
    },
    handleCurrentChange(currentPage) {
      this.currentPage = currentPage
      this.load();
    }
  }
}
</script>


<style scoped>
.demo-image__error .image-slot {
  font-size: 30px;
}
.demo-image__error .image-slot .el-icon {
  font-size: 30px;
}
.demo-image__error .el-image {
  width: 100%;
  height: 100%;
}
</style>
